Re: [PATCH] tracing: Fix WARN_ON in tracing_buffers_mmap_close

[Steven Rostedt]

On Fri, 27 Feb 2026 11:22:22 +0000
Vincent Donnefort <vdonnefort@xxxxxxxxxx> wrote:

> > Ah right, Syzkaller is using madvise(MADVISE_DOFORK) which resets VM_DONTCOPY.  
> 
> As we are applying restrictive rules for this mapping, I believe setting VM_IO
> might be a better fix.

Agreed.

-- Steve